GEL ELECTROLYTE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY COMPRISING SAME

• Main Authors: KONO, YASUTAKA, KANEKO, SHINAKO, HASIZUME, YOKO, ISHIKAWA, HITOSHI
• Format: Patent
• Language: English; French; German
• Published: 19.09.2012
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

There is provided a lithium ion secondary battery which has high safety and good life characteristics. There is also provided a gel electrolyte for a lithium ion secondary battery, which contains a lithium salt, a copolymer of specific monomers, a compound having a specific phosphazene structure, and at least one compound selected from a specific cyclic disulfonate ester, a specific chain disulfonate ester and a specific sultone compound.